The singing rider

Casinova Everfrost is just your typical girl, she loves country music, watches rodeos, has a nice job, and she has her own horse. But on her supposed day off she is called to work to take a group of 5 out. can you guess who this group is? and what it might mean for Cass?
some of you may think that i stole this from another writer(who i am following on here and she is my best friend) but im not. we created the story together and im just making my own version of the story. most character names are real people who are my co workers.